CVE-2025-28021: Totolink a810r Firmware

High severity, CVSS 7.3. EPSS: 0.4% chance of exploitation in the next 30 days.

TOTOLINK A810R V4.1.2cu.5182_B20201026 was found to contain a buffer overflow vulnerability in the downloadFile.cgi through the v14 and v3 parameters

Affected products

• Totolink a810r Firmware: version 4.1.2cu.5182_b20201026 only

Published 2025-04-23. Last modified 2026-06-17.